Response.php

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<?php
class Zend_Json_Server_Response
{
    protected $_error;

    protected $_id;

    protected $_result;

    protected $_serviceMap;

    protected $_version;

    public function setResult($value)
    {
        $this->_result = $value;
        return $this;
    }

    public function getResult()
    {
        return $this->_result;
    }

    // RPC error, if response results in fault
    public function setError(Zend_Json_Server_Error $error)
    {
        $this->_error = $error;
        return $this;
    }

    public function getError()
    {
        return $this->_error;
    }

    public function isError()
    {
        return $this->getError() instanceof Zend_Json_Server_Error;
    }

    public function setId($name)
    {
        $this->_id = $name;
        return $this;
    }

    public function getId()
    {
        return $this->_id;
    }

    public function setVersion($version)
    {
        $version = is_array($version)
            ? implode(' ', $version)
            : $version;
        if ((string)$version == '2.0') {
            $this->_version = '2.0';
        } else {
            $this->_version = null;
        }
        return $this;
    }

    public function getVersion()
    {
        return $this->_version;
    }

    public function toJson()
    {
        if ($this->isError()) {
            $response = array(
                'error'  => $this->getError()->toArray(),
                'id'     => $this->getId(),
            );
        } else {
            $response = array(
                'result' => $this->getResult(),
                'id'     => $this->getId(),
            );
        }

        if (null !== ($version = $this->getVersion())) {
            $response['jsonrpc'] = $version;
        }

        #require_once 'Zend/Json.php';
        return Zend_Json::encode($response);
    }

    public function getArgs()
    {
        return $this->_args;
    }

    public function setArgs($args)
    {
        $this->_args = $args;
        return $this;
    }

    public function setServiceMap($serviceMap)
    {
        $this->_serviceMap = $serviceMap;
        return $this;
    }

    public function getServiceMap()
    {
        return $this->_serviceMap;
    }

    public function __toString()
    {
        return $this->toJson();
    }
}